Automatic radial run-out measuring device

The invention discloses an automatic radial run-out measuring device which comprises a frame body, a lifting mechanism, a measuring mechanism, a clamping mechanism and a controller. The automatic radial run-out measuring device has the advantages that workpiece automatic radial run-out measuring is achieved, workpiece clamping and measuring can be achieved, the whole process does not need manual interference, automatic production line online detection can be achieved by the device coordinating with a mechanical arm to perform feeding and discharging, the actions of each mechanism are controlled by the controller, measuring data is collected through the controller, and intelligent measuring is achieved; meanwhile, the automatic radial run-out detecting requirements of various types of workpieces can be satisfied, radial run-out of part elements relative to an excircle or an inner hole can be measured, and the device is wide in application range; during measuring, the space position of a measuring sensor can be set by a limit block and the measuring mechanism, and the radial run-outer tolerance measuring requirements of to-be-measured workpieces at different space positions can be satisfied.